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Yes but since the main purpose was to locate files used in the query the WHERE vs LEFT OUTER JOIN doesn't matter...it's just searching for a file name. Thanks, Tommy Holden -----Original Message----- From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx Sent: Thursday, December 21, 2006 2:35 PM To: Midrange Systems Technical Discussion Subject: RE: How to ID what queries use what files? I'd be careful with RTVQMQRY. It's a nice tool and I do use it but I'm not sure that it does an effective job with "matching records with primary file". Query/400 is really big on using the WHERE clause instead of a JOIN. However, what you're looking for here is a LEFT OUTER JOIN. Rob Berendt
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